【摘要】 文章研究了硬质合金工模具(包括塑性成形模具和切削加工的刀具)加工有色金属的扩散磨损特征与机理,利用4种硬质合金刀具(YD05、YM051、YN05、YN10)进行了薄切削铝合金试验,检查了刀具切削前及失效后刀具主后刀面的化学成份,对比分析刀具、铝合金工件化学成份。研究发现,硬质合金工具加工铝合金时,扩散磨损是由于硬质合金中粘结相原子向铝合金工件扩散、铝合金工件中铝原子向硬质合金刀具扩散而造成的。更多还原

【Abstract】 This paper studies the characteristics and mechanisim of the diffusion wear of cemented carbide tools(including plastics forming tools and cutting tools)which is be used in the processing of non-ferrous metals,conducts thin-cutting aluminun alloy experiments by using four kinds of cemented carbide cutting-tools(YD05,YM051,YN05,YN10),checks the chemical compositions on the cutting-tools before and after that,and comparative analyzes the chemical compositions on cutting-tools and aluminum alloy parts.The study found that when aluminum alloy is processed by cemented carbide tools,diffusion wear is caused by the diffusion of the sticky-integrate atom from cemented carbide to aluminum alloy parts and the aluminum atom from aluminum alloy parts to cemented carbide cutting-tools.更多还原